Just make sure you count the splines on the 10bolt axleshafts before you go out looking for spares. There are 2 counts, 28 and 30 splines. 81-87 has 28, 88-91 has 30.
Just giving you a heads up, I had a bit of trouble looking for the correct ones for my 90.
I think that setup will be fine, I'm running the same setup.